Sciweavers

950 search results - page 18 / 190
» Continuous Queries over Data Streams - Semantics and Impleme...
Sort
View
TKDE
2010
151views more  TKDE 2010»
14 years 8 months ago
Duplicate-Insensitive Order Statistics Computation over Data Streams
—Duplicates in data streams may often be observed by the projection on a subspace and/or multiple recordings of objects. Without the uniqueness assumption on observed data elemen...
Ying Zhang, Xuemin Lin, Yidong Yuan, Masaru Kitsur...
STACS
2010
Springer
15 years 4 months ago
Continuous Monitoring of Distributed Data Streams over a Time-based Sliding Window
The past decade has witnessed many interesting algorithms for maintaining statistics over a data stream. This paper initiates a theoretical study of algorithms for monitoring distr...
Ho-Leung Chan, Tak Wah Lam, Lap-Kei Lee, Hing-Fung...
99
Voted
SOFSEM
2010
Springer
15 years 6 months ago
Continuous Processing of Preference Queries in Data Streams
Preference queries have received considerable attention in the recent past, due to their use in selecting the most preferred objects, especially when the selection criteria are con...
Maria Kontaki, Apostolos N. Papadopoulos, Yannis M...
DASFAA
2006
IEEE
168views Database» more  DASFAA 2006»
15 years 3 months ago
PMJoin: Optimizing Distributed Multi-way Stream Joins by Stream Partitioning
Abstract. In emerging data stream applications, data sources are typically distributed. Evaluating multi-join queries over streams from different sources may incur large communica...
Yongluan Zhou, Ying Yan, Feng Yu, Aoying Zhou
93
Voted
ICEBE
2005
IEEE
168views Business» more  ICEBE 2005»
15 years 3 months ago
Frequency Operators for Condensative Queries over Data Streams
Over a traditional Database Management System (DBMS), the answer to an aggregate query is usually much smaller than the answer to a similar nonaggregate query. Therefore, we call ...
Lisha Ma, Werner Nutt